Walworth County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in South Dakota
The population of Walworth County, South Dakota is 5,298 as of the 2023 American Community Survey, making it the 33rd-largest county in South Dakota. The median household income is $62,722, the median home value is $130,000, and the median age is 41.6.
The population of Walworth County has declined 3.2% since 2010 (5,443 → 5,270), a -0.23% annualized rate.
5,298
Population
-0.23%
Annual growth
7
People / sq mi
$62,722
Median Income
$130,000
Median Home Value
Walworth County covers 707 sq mi of land at 7.5 people per square mile.
About Walworth County, SD
Walworth County is a county in South Dakota with a population of 5,298. It ranks #33 among counties in South Dakota by population. The median age is 41.6, older than the national median. The population is 50.8% male and 49.2% female.
The median household income in Walworth County is $62,722, below the US median of $74,580. 11.4% of residents live below the federal poverty level. Home values sit at a median of $130,000, with monthly rent averaging $962. The homeownership rate of 74.2% is higher than the national rate of 64.8%.
Educational attainment in Walworth County reflects 31.1% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 15.2 minutes each way.
Walworth County Population History (2010-2024)
The county of Walworth County had a population of 5,443 in 2010 and 5,270 in 2024, a -3.2% growth over 14 years. The peak was 5,561 in 2011. Average annual growth rate: -0.22%.
5,270
Population (2024)
5,443
Population (2010)
5,561
Peak (2011)
-0.22%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 5,443 |
| 2011 | 5,561 |
| 2012 | 5,449 |
| 2013 | 5,489 |
| 2014 | 5,508 |
| 2015 | 5,412 |
| 2016 | 5,469 |
| 2017 | 5,480 |
| 2018 | 5,450 |
| 2019 | 5,421 |
| 2020 | 5,294 |
| 2021 | 5,261 |
| 2022 | 5,266 |
| 2023 | 5,264 |
| 2024 | 5,270 |
Race & Ethnicity
| White | 79.7% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 19.6% |
| Two or More Races | 0.0% |
Age & Sex
41.6
Median Age
49.2%
Female
50.8%
Male
23.2%
Age 65+
Age Distribution
Children (under 15): 20.4% · Seniors (65+): 23.2%
Income & Poverty
| Median household income | $62,722$-9,699 vs state |
| Mean household income | $85,035 |
| Per-capita income | $37,717 |
| Poverty rate | 11.4%+4.0% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 58.2% |
Top Industries by Employment
The largest employment sector in Walworth County is professional & business services, accounting for 24.3% of workers.
How residents commute
0.3%
Drive alone
6.2%
Carpool
77.4%
Public transit
5.9%
Work from home
15.2 min
Avg commute
Housing
$130,000$-106,800 vs state
Median home value
$962
Median rent
74.2%
Homeownership rate
2,941
Total housing units
81.5%
Occupied
18.5%
Vacant
25.8%
Renter-occupied
Social & access
89.3%
With health insurance
92.0%
With broadband internet
34.3%
Foreign-born
8.7%
Veterans (18+)
14.0%
With a disability
97.1%
Speak language other than English at home
Education
92.0%
High School+
31.1%
Bachelor's+
Largest cities in South Dakota
Other counties in South Dakota
Part of South Dakota
Metro areas in South Dakota
County rankings
Frequently Asked Questions
Walworth County, South Dakota has a population of 5,298 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in South Dakota. Population density is 7 people per square mile.
The population of Walworth County has declined 3.2% since 2010 (5,443 → 5,270), a -0.23% annualized rate.
The median household income in Walworth County, South Dakota is $62,722, with mean (average) household income of $85,035 and per-capita income of $37,717. 11.4% of residents live below the federal poverty level.
In Walworth County, the largest racial and ethnic groups are White (79.7%), Hispanic or Latino (19.6%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Walworth County, South Dakota is 41.6 years. Residents are 49.2% female and 50.8% male.
The median home value in Walworth County is $130,000 and median monthly rent is $962. 74.2% of occupied housing units are owner-occupied. The county has 2,941 total housing units, 18.5% of which are vacant.
The largest employment sector in Walworth County, South Dakota is professional, scientific, and management services, employing 24.3% of workers. The unemployment rate is 2.2%.
Sioux Falls is among the largest cities associated with Walworth County, South Dakota, with a population of 197,642.
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Statewide data for South Dakota
Population, race, income, age, and trends across South Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.